| This complicated bilayered structure is typical of anthozoan late planula larvae. |
| Schematic view of a transverse section of the late planula of the anthozoan Euphyllia rugosa. |
| It has been proposed that the most recent common ancestor between cnidarians and bilaterians would have been morphologically similar to a pennatulacean anthozoan. |
| The origin of such symmetry is not related to the basic anthozoan body plan. |
| When Wotton in 1552 gave to anthozoan corals and gorgonians, and hydrozoans the name Zoophyte, it was because of their morphological similarity to higher plants. |
| It is not homologous with the bilaterality of body plans characteristic of anthozoan groups. |
